CN108391520B - Vibration rotary asynchronous re-threshing type grain manuscript-by-manuscript re-separating device - Google Patents
Vibration rotary asynchronous re-threshing type grain manuscript-by-manuscript re-separating device Download PDFInfo
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- CN108391520B CN108391520B CN201810452449.XA CN201810452449A CN108391520B CN 108391520 B CN108391520 B CN 108391520B CN 201810452449 A CN201810452449 A CN 201810452449A CN 108391520 B CN108391520 B CN 108391520B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/24—One-part threshing concaves
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/44—Grain cleaners; Grain separators
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/44—Grain cleaners; Grain separators
- A01F12/446—Sieving means
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F2012/188—Rethreshing devices
Abstract
The invention discloses a vibrating rotary asynchronous re-threshing grain manuscript-by-manuscript separating device which comprises a frame, a transmission mechanism, an asynchronous re-threshing separating mechanism and a shaking flow guiding mechanism, wherein the transmission mechanism is symmetrically arranged at the left side and the right side of the frame, four groups of asynchronous re-threshing separating mechanisms are arranged on an assembled transmission crankshaft of the transmission mechanism, the asynchronous re-threshing separating mechanism is positioned at the upper part of the frame, the shaking flow guiding mechanism is arranged at the lower part of the frame, the transmission crankshaft is arranged at the front side and the rear side of the frame, a transmission short shaft is arranged at the lower part of the frame, an upper grid screen is fixed at the upper part of a key box, a follow-up roller is arranged at the middle part of the key box, re-threshing nail teeth are spirally distributed and fixed on the follow-up roller, a feeding plate is fixed between the upper grid screen and the follow-up roller, a lower concave plate screen is fixed at the bottom of the key box, and a sundry outlet is fixed at the rear end of the key box. The invention has high separation efficiency, less entrainment loss, low impurity content, asynchronous separation, coupling and repeated separation and high stability.
Description
Technical Field
The invention relates to a manuscript-by-manuscript separating device for agricultural machinery, in particular to a vibrating rotary asynchronous repeated-threshing type manuscript-by-manuscript separating device for grains.
Background
The draft-by-draft separation is a necessary link after the grain threshing process, and on a combine harvester and a compound threshing machine, the draft-by-draft device is a key component for connecting threshing and cleaning, and the high-efficiency separation performance of the draft-by-draft device is an important guarantee for reducing grain loss and increasing grain income.
The main function of the manuscript-expelling device is to separate grains and broken ears entrained in the discharged matters from the roller and discharge the stalks out of the machine. At present, a common manuscript-by-manuscript-separating device mainly comprises two types of vibration type and rotary type, wherein the vibration type is represented by a double-shaft key manuscript-by-means device, a rotary type axial flow separation roller is most widely applied, when the double-shaft key manuscript-by-means device works, a separated object is thrown away from a key surface and then moves in the air as a projectile, at the moment, a stalk layer is in a loose state, grains are separated by penetrating through gaps of the stalk layer, and long stalk sliding key surface directions are conveyed backwards in the throwing process; when the axial flow separation roller works, the spike teeth continuously stir the out-of-stock, the out-of-stock is caused to be discrete through collision, seeds, broken spikes and the like are separated out through gaps of the stalk layer, and due to the spiral arrangement mode of the spike teeth, the axial movement of the material can be pushed, and impurities such as the stalks which cannot pass through the sieve are discharged from the tail end of the roller. However, the key type manuscript-by-manuscript device or the roller type manuscript-by-device has the main defects of lower productivity and incapability of completely separating the separated matters under the single vibration or stirring action; the loss of grain entrained behind the manuscript-by-manuscript is larger, and the grain yield is seriously affected; after the broken spikes and the agglomerates enter the cleaning device, the impurity content is high, and the cleaning workload is increased.
In view of the technology and performance of the grain manuscript-by-manuscript separating device, a vibration rotary asynchronous repeated-release grain manuscript-by-manuscript separating device with high separating efficiency, less entrainment loss, low impurity content, good coupling effect, simple structure and high reliability is urgently needed.
Disclosure of Invention
The invention aims to provide a vibrating rotary asynchronous re-threshing grain manuscript-by-manuscript-separating device which has the advantages of high separation efficiency, less entrainment loss, low impurity content, asynchronous separation, capability of coupling re-threshing and high stability.
The device comprises a frame, a transmission mechanism, an asynchronous repeated-release type separation mechanism and a shaking flow guide mechanism, wherein the transmission mechanism is symmetrically arranged at the left side and the right side of the frame; the transmission mechanism comprises an assembled transmission crankshaft, first vertical bearings, first bolts, a first driving belt pulley, a first belt, a transmission short shaft, a third driven belt pulley, a second belt and a second driven belt pulley, wherein the six first vertical bearings are symmetrically fixed on the left side and the right side of the frame through the first bolts; the asynchronous re-falling type separating mechanism comprises a lower concave plate sieve, a second bolt, a follow-up roller, a feeding plate, re-falling spike teeth, a impurity outlet, a key box, an upper grid sieve, a second horizontal bearing, a third belt, a fourth driven belt wheel, a follow-up rotating shaft, a first driven bevel gear, a second driving bevel gear, a fifth driving belt wheel, a fourth horizontal bearing and a roller transmission shaft, wherein the follow-up roller is arranged in the middle of the key box through the fourth horizontal bearing, the re-falling spike teeth are spirally distributed and fixed on the follow-up roller, the lower concave plate sieve is fixed at the bottom of the key box through the second bolt, the impurity outlet is fixed at the rear end of the key box, the upper grid sieve is positioned at the upper part of the key box, the upper grid sieve is fixed on the inner wall of the key box, the feeding plate is positioned between the upper grid sieve and the follow-up roller, the feeding plate is fixed on the inner wall of the key box, the journals of the assembled driving crankshaft are arranged at the front and rear ends of the key box through the second horizontal bearing, the assembled driving crankshaft are fixed at the two ends of the journal, the assembled driving pulley is fixed at the front and rear ends of the driving pulley through the second horizontal bearing, the fifth driving pulley is meshed with the fourth driving bevel gear through the third horizontal bearing, the fifth driving pulley is fixed on the fourth driving pulley and the driven pulley is meshed with the fourth driving pulley; the shaking flow guide mechanism comprises a flow guide disc, a rocker and a shaking arm, the rocker is arranged on a lifting lug of the frame, the shaking arm is fixed on a transmission short shaft, the front end of the flow guide disc is hinged to the rocker, and the rear end of the flow guide disc is hinged to the shaking arm.
The rotation speed ratio of the second driven belt pulley to the third driven belt pulley is 1:1, namely the vibration frequency of the asynchronous repeated-release type separating mechanism is equal to the vibration frequency of the vibration flow guiding mechanism.
The rotation speed ratio of the fifth driving belt pulley to the fourth driven belt pulley is 1:3, the rotation speed ratio of the second drive bevel gear to the first driven bevel gear is 1:1, namely the ratio of the vibration frequency of the asynchronous repeated-release type separating mechanism to the rotation frequency of the follow-up roller is 1:3.
the working principle and the process of the invention are as follows:
the first driving belt wheel and the second driven belt wheel drive the front and rear assembled transmission crankshafts to synchronously rotate, so that the asynchronous repeated-release type separating mechanism is driven to vibrate in a reciprocating mode, the adjacent asynchronous repeated-release type separating mechanisms are opposite in movement stroke, meanwhile, the fifth driving belt wheel fixed on the curved neck drives the fourth driven belt wheel to rotate, the follow-up rotating shaft rotates, the second driving bevel gear fixed on the follow-up rotating shaft drives the first driven bevel gear to rotate, the follow-up roller is driven to rotate, the second driven belt wheel drives the third driven belt wheel to rotate, the transmission short shaft drives the shaking arm to rotate, and the guide disc shakes in a reciprocating mode.
After the separated matters enter the manuscript-by-manuscript device, the separated matters are in a loose state under the reciprocating vibration action of the key box, long straws move backwards along the key face, grains, broken ears and short straws pass through gaps of a straw layer and are separated out through an upper grid screen, so that primary manuscript-by-manuscript separation is completed; grain, broken ears and short straws enter between the follow-up roller and the concave plate screen along the feeding plate, on one hand, the roller carries out secondary separation on the extracted matters, and the short straws and other miscellaneous residues flow along the axial direction of the roller and are discharged from a miscellaneous residue outlet, on the other hand, the roller carries out repeated threshing on the broken ears and the agglomerates, and the materials separated through the secondary repeated threshing enter the shaking guide mechanism through the concave plate screen.
The invention has the beneficial effects that:
1. in the operation process, the organic combination of two separation mechanisms of vibration and rotation is realized, the multistage asynchronous separation operation of vibration and rotation is utilized, the separation efficiency is greatly improved, the separation quality is improved, and the grain wrapping loss is effectively reduced.
2. The secondary separation follow-up roller is utilized to carry out repeated separation on the primary separation materials, so that the proportion of broken ears and agglomerates is greatly reduced, the material threshing rate is improved, the stable and smooth material flow is ensured, and the guarantee is provided for the follow-up cleaning and high-efficiency low-loss operation.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
FIG. 2 is a schematic diagram of an embodiment of the invention with the asynchronous repeating disengaging mechanism removed.
Fig. 3 is a cross-sectional view of an asynchronous take-off and separation mechanism in an embodiment of the invention.
Fig. 4 is a partially enlarged view at a in fig. 3.
Fig. 5 is a schematic view of the structure of fig. 4 along the direction C.
Fig. 6 is a partially enlarged rear view at B in fig. 3.
Wherein: 1-a frame; 2-a transmission mechanism; 3-an asynchronous repeated-release type separating mechanism; 4-shaking flow guiding mechanism; 5-assembling a transmission crankshaft; 5-1-crank; 5-2-journal; 6-a first vertical bearing; 7-a first bolt; 8, a flow guiding disc; 9-rocker; 10-a first driving pulley; 11-a first belt; 12-shaking the arm; 13-a transmission short shaft; 14-a third driven pulley; 15-a second belt; 16-a second driven pulley; 17-concave plate screen; 18-a second bolt; 19-a follower roller; 20-feeding plate; 21-re-removing the spike teeth; 22-a residue outlet; 23-a keybox; 24-screening with a grid screen; 25-a second horizontal bearing; 26-a third horizontal bearing; 27-a third belt; 28-fourth driven pulley; 29-a follow-up rotating shaft; 30—a first driven bevel gear; 31-a second drive bevel gear; 32-a fifth driving pulley; 33-fourth horizontal bearing; 34-roller drive shaft.
Detailed Description
Referring to fig. 1, 2, 3, 4, 5 and 6, the embodiment includes a frame 1, a transmission mechanism 2, an asynchronous double-release separating mechanism 3 and a shaking guide mechanism 4, the transmission mechanism 2 is symmetrically installed at the left and right sides of the frame 1, four groups of asynchronous double-release separating mechanisms 3 are installed on an assembled transmission crankshaft 5 of the transmission mechanism 2, the asynchronous double-release separating mechanism 3 is located at the upper part of the frame 1, and the shaking guide mechanism 4 is installed at the lower part of the frame 1; the transmission mechanism 2 comprises an assembled transmission crankshaft 5, a first vertical bearing 6, a first bolt 7, a first driving pulley 10, a first belt 11, a transmission short shaft 13, a third driven pulley 14, a second belt 15 and a second driven pulley 16, wherein six first vertical bearings 6 are symmetrically fixed on the left side and the right side of the frame 1 through the first bolt 7, two assembled transmission crankshafts 5 are respectively installed on the front side and the rear side of the frame 1 through the first vertical bearings 6, the transmission short shaft 13 is installed on the lower part of the frame 1 through the first vertical bearings 6, the first driving pulley 10 is fixed on the assembled transmission crankshaft 5 on the front side, the second driven pulley 16 is fixed on the assembled transmission crankshaft 5 on the rear side, the third driven pulley 14 is fixed on the transmission short shaft 13, the first driving pulley 10 is connected with the second driven pulley 16 through the first belt 11, and the second driven pulley 16 is connected with the third driven pulley 14 through the second belt 15; the asynchronous re-falling type separating mechanism 3 comprises a lower concave plate sieve 17, a second bolt 18, a follow-up roller 19, a feeding plate 20, re-falling spike teeth 21, a impurity outlet 22, a key box 23, an upper grid sieve 24, a second horizontal bearing 25, a third horizontal bearing 26, a third belt 27, a fourth driven belt pulley 28, a follow-up rotating shaft 29, a first driven bevel gear 30, a second driving bevel gear 31, a fifth driving belt pulley 32, a fourth horizontal bearing 33 and a roller transmission shaft 34, wherein the follow-up roller 19 is arranged in the middle of the key box 23 through the fourth horizontal bearing 33, the re-falling spike teeth 21 are spirally distributed and fixed on the follow-up roller 19, the lower concave plate sieve 17 is fixed at the bottom of the key box 23 through the second bolt 18, the impurity outlet 22 is fixed at the rear end of the key box 23, the upper grid sieve 24 is positioned at the upper part of the key box 23, the upper grid sieve 24 is fixed on the inner wall of the key box 23, the feeding plate 20 is positioned between the upper grid screen 24 and the follower roller 19, the feeding plate 20 is fixed on the inner wall of the keybox 23, the journal 5-2 of the assembled transmission crankshaft 5 is arranged at the front end and the rear end of the keybox 23 through a second horizontal bearing 25, the crank 5-1 of the assembled transmission crankshaft 5 is fixed at the two ends of the journal 5-2, two fifth driving pulleys 32 are fixed on the journal 5-2, the follower rotating shaft 29 is arranged at the front end of the keybox 23 through a third horizontal bearing 26, two fourth driven pulleys 28 are fixed on the follower rotating shaft 29, the fifth driving pulleys 32 are connected with the fourth driven pulleys 28 through a third belt 27, a second driving bevel gear 31 is fixed on the follower rotating shaft 29, a first driven bevel gear 30 is fixed on a roller transmission shaft 34, and the second driving bevel gear 31 is meshed with the first driven bevel gear 30; the shaking flow guide mechanism 4 comprises a flow guide disc 8, a rocker 9 and shaking arms 12, wherein the rocker 9 is arranged on a lifting lug of the frame 1, the shaking arms 12 are fixed on a transmission short shaft 13, the front end of the flow guide disc 8 is hinged to the rocker 9, and the rear end of the flow guide disc 8 is hinged to the shaking arms 12.
The rotation speed ratio of the second driven pulley 16 to the third driven pulley 14 is 1:1, namely the vibration frequency of the asynchronous double-release separating mechanism 3 is equal to the vibration frequency of the vibration diversion mechanism 4.
The rotation speed ratio of the fifth driving pulley 32 to the fourth driven pulley 28 is 1:3, the rotation speed ratio of the second drive bevel gear 31 to the first driven bevel gear 30 is 1:1, that is, the ratio of the vibration frequency of the asynchronous double-release separating mechanism 3 to the rotation frequency of the follower roller 19 is 1:3.
Claims (3)
1. the utility model provides a vibration gyration asynchronism is taken off formula cereal and is separated device by manuscript which characterized in that: the device comprises a frame (1), a transmission mechanism (2), an asynchronous repeated-release type separation mechanism (3) and a shaking flow guide mechanism (4), wherein the transmission mechanism (2) is symmetrically arranged at the left side and the right side of the frame (1), four groups of asynchronous repeated-release type separation mechanisms (3) are arranged on an assembled transmission crankshaft (5) of the transmission mechanism (2), the asynchronous repeated-release type separation mechanism (3) is positioned at the upper part of the frame (1), and the shaking flow guide mechanism (4) is arranged at the lower part of the frame (1); the transmission mechanism (2) comprises an assembled transmission crankshaft (5), a first vertical bearing (6), a first bolt (7), a first driving pulley (10), a first belt (11), a transmission short shaft (13), a third driven pulley (14), a second belt (15) and a second driven pulley (16), wherein six first vertical bearings (6) are symmetrically fixed on the left side and the right side of the frame (1) through the first bolt (7), two assembled transmission crankshafts (5) are respectively arranged on the front side and the rear side of the frame (1) through the first vertical bearings (6), the transmission short shaft (13) is arranged at the lower part of the frame (1) through the first vertical bearing (6), the first driving pulley (10) is fixed on the assembled transmission crankshaft (5) on the front side, the second driven pulley (16) is fixed on the assembled transmission crankshaft (5) on the rear side, the third driven pulley (14) is fixed on the transmission short shaft (13), and the first driving pulley (10) is connected with the second driven pulley (16) through the first belt (11), and the second driven pulley (16) is connected with the third driven pulley (14) through the second driven pulley (15); the asynchronous re-falling type separating mechanism (3) comprises a lower concave plate sieve (17), a second bolt (18), a follow-up roller (19), a feeding plate (20), re-falling spike teeth (21), a impurity outlet (22), a key box (23), an upper grid sieve (24), a second horizontal bearing (25), a third horizontal bearing (26), a third belt (27), a fourth driven belt wheel (28), a follow-up rotating shaft (29), a first driven bevel gear (30), a second driving bevel gear (31), a fifth driving belt wheel (32), a fourth horizontal bearing (33) and a roller transmission shaft (34), wherein the follow-up roller (19) is arranged in the middle of the key box (23) through the fourth horizontal bearing (33), the re-falling spike teeth (21) are spirally distributed and fixed on the follow-up roller (19), the lower concave plate sieve (17) is fixed at the bottom of the key box (23) through the second bolt (18), the impurity outlet (22) is fixed at the rear end of the key box (23), the upper grid sieve (24) is positioned at the upper part of the key box (23), the upper grid sieve (24) is positioned at the upper grid (24) of the key box (23), the feeding plate (20) is fixed on the inner wall of the key box (20), the axle journal (5-2) of the assembled transmission crankshaft (5) is arranged at the front end and the rear end of the keybox (23) through a second horizontal bearing (25), the crank (5-1) of the assembled transmission crankshaft (5) is fixed at the two ends of the axle journal (5-2), two fifth driving pulleys (32) are fixed on the axle journal (5-2), a follow-up rotating shaft (29) is arranged at the front end of the keybox (23) through a third horizontal bearing (26), two fourth driven pulleys (28) are fixed on the follow-up rotating shaft (29), the fifth driving pulleys (32) are connected with the fourth driven pulleys (28) through a third belt (27), a second driving bevel gear (31) is fixed on the follow-up rotating shaft (29), a first driven bevel gear (30) is fixed on a roller transmission shaft (34), and the second driving bevel gear (31) is meshed with the first driven bevel gear (30); the shaking flow guide mechanism (4) comprises a flow guide disc (8), a rocker (9) and shaking arms (12), wherein the rocker (9) is arranged on a lifting lug of the frame (1), the shaking arms (12) are fixed on a transmission short shaft (13), the front end of the flow guide disc (8) is hinged to the rocker (9), and the rear end of the flow guide disc (8) is hinged to the shaking arms (12).
2. The vibrating rotary asynchronous repeated threshing grain manuscript-by-manuscript separating device according to claim 1, wherein: the rotation speed ratio of the second driven pulley (16) to the third driven pulley (14) is 1:1, namely the vibration frequency of the asynchronous repeated-release type separating mechanism (3) is equal to the vibration frequency of the vibration flow guiding mechanism (4).
3. The vibrating rotary asynchronous repeated threshing grain manuscript-by-manuscript separating device according to claim 1, wherein: the rotation speed ratio of the fifth driving pulley (32) to the fourth driven pulley (28) is 1:3, the rotation speed ratio of the second drive bevel gear (31) to the first driven bevel gear (30) is 1:1, namely the ratio of the vibration frequency of the asynchronous repeated-release type separating mechanism (3) to the rotation frequency of the follow-up roller (19) is 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452449.XA CN108391520B (en) | 2018-05-13 | 2018-05-13 | Vibration rotary asynchronous re-threshing type grain manuscript-by-manuscript re-separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452449.XA CN108391520B (en) | 2018-05-13 | 2018-05-13 | Vibration rotary asynchronous re-threshing type grain manuscript-by-manuscript re-separating device |
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| Publication Number | Publication Date |
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| CN108391520A CN108391520A (en) | 2018-08-14 |
| CN108391520B true CN108391520B (en) | 2023-10-03 |
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| CN201810452449.XA Active CN108391520B (en) | 2018-05-13 | 2018-05-13 | Vibration rotary asynchronous re-threshing type grain manuscript-by-manuscript re-separating device |
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| CN (1) | CN108391520B (en) |
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|---|---|---|---|---|
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| CN107182453A (en) * | 2017-05-19 | 2017-09-22 | 江苏大学 | A kind of grain cleaning system with uniform material and precleaning function |
| CN107548722A (en) * | 2017-11-01 | 2018-01-09 | 东北农业大学 | Rice combining cuts stream and forces feeding circulation Rethresher structure with axial threshing |
| CN107670974A (en) * | 2017-11-07 | 2018-02-09 | 吉林大学 | Interval intercept type cereal direction vibration cleaning plant |
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